package com.itheima.inter.test;

public class test {
    public static void main(String[] args) {
        Fu f=new Zi();
        f.method();
        Zi z=(Zi)f;
        z.show();
    }
//let me down slowy
}
 class Fu{
    public   void method(){
        System.out.println("fu");
    }
}
class Zi extends Fu{
    public  void method(){
        System.out.println("Zi");
        }
        public void show(){
            System.out.println("特有的");
        }
        }
